Checkpoint : Security Vulnerabilities, CVEs, Published In 1999

Firewall-1 does not properly restrict access to LDAP attributes.

Firewall-1 sets a long timeout for connections that begin with ACK or other packets except SYN, allowing an attacker to conduct a denial of service via a large number of connection attempts to unresponsive systems.

Check Point FireWall-1 can be subjected to a denial of service via UDP packets that are sent through VPN-1 to port 0 of a host.